The sensor of the month: Endevco 7251A accelerometer

The Endevco model 7251A is a small piezoelectric accelerometer with integral electronics, designed specifically for measuring vibration on most structures. The unit is hermetically sealed against environment contamination, offers high output sensitivity, and wide bandwidth. This new light weight (10.5 gm) design effectively minimizes mass loading effects.

Model 7251A features Endevco’s Piezite ® type P-8 crystal element operating in annular shear mode, which exhibits low base strain sensitivity and excellent output stability over time. This accelerometer incorporates an internal hybrid signal conditioner in a two-wire system, which transmits its low impedance voltage output through the same cable that supplies the constant current power. Signal ground is connected to the outer case of the unit and when used with the supplied isolated mounting screw, is electrically isolated from ground. The centrally located mounting bolt permits 360° cable orientation, a very desirable feature in many applications. A model number suffix indicates sensitivity in mV/g; i.e., 7251A-10 features output sensitivity of 10 mV/g.

You can download the 7251A accelerometer datasheet here (pdf) >

For more information, please contact:

Lauri Selänne
Tel FI: +358 (0)400 376 297

Jaakko Viljakainen
Tel FI: +358 (0)40 964 2042

Sami Päijänen
Tel FI: +358 (0)44 077 5515

Pekka Jolanki
Tel SE: +46 (0)76 525 5000

Conny Falk
Tel SE: +46 (0)70 861 5575

William Falk
Tel SE: +46 (0)70 861 5621